# CVE-2008-4324: Null dereference in n/a

> Remote attackers can crash Mozilla Firefox via specific UI event sequences, causing a denial of service.

- **Severity:** Medium 5.0 (`AV:N/AC:L/Au:N/C:N/I:N/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 29 Sep 2008
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-hfq5-47x3-ghhc

## What is CVE-2008-4324?

CVE-2008-4324 is a medium-severity vulnerability in Mozilla Firefox, published on 29 Sep 2008. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

The user interface event dispatcher in Mozilla Firefox 3.0.3 on Windows XP SP2 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a series of keypress, click, onkeydown, onkeyup, onmousedown, and onmouseup events.  NOTE: it was later reported that Firefox 3.0.2 on Mac OS X 10.5 is also affected.

Weakness: CWE-399

## Which versions are affected by CVE-2008-4324?

It affects 1 product.


Products: Mozilla Firefox.

## How do I fix CVE-2008-4324?

No fix has been published for CVE-2008-4324 yet. Limit exposure of the affected software until one is available.

## Is CVE-2008-4324 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2008-4324 exists.

Public exploit code:

- Mozilla Firefox 3.0.3 - User Interface Null Pointer Dereference Crash (exploitdb)

## Other vulnerabilities in Mozilla Firefox

- [CVE-2019-11708](https://insights.sbomify.com/CVE-2019-11708/): Mozilla Firefox and Thunderbird Sandbox Escape (critical 10.0, exploited in the wild)
- [CVE-2010-3765](https://insights.sbomify.com/CVE-2010-3765/): Mozilla Multiple Products Remote Code Execution (critical 9.8, exploited in the wild)
- [CVE-2022-26486](https://insights.sbomify.com/CVE-2022-26486/): Mozilla Firefox Use-After-Free (critical 9.6, exploited in the wild)
- [CVE-2022-26485](https://insights.sbomify.com/CVE-2022-26485/): Mozilla Firefox Use-After-Free (high 8.8, exploited in the wild)
- [CVE-2019-11707](https://insights.sbomify.com/CVE-2019-11707/): Mozilla Firefox and Thunderbird Type Confusion (high 8.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2008-4324 and fix it if it is affected.

What it is: CVE-2008-4324 is a medium-severity vulnerability in Mozilla Firefox, published on 29 Sep 2008. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2008-4324 exists.

Affected product: Mozilla Firefox. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2008-4324/ (Markdown: https://insights.sbomify.com/CVE-2008-4324/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2008-4324
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2008-4324
- OSV: https://osv.dev/vulnerability/CVE-2008-4324

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From sbomify Insights: https://insights.sbomify.com/CVE-2008-4324/
Summaries are generated and may contain mistakes; the official description above is the record.